Market Data

Available market data

The Clear Street Active platform provides real-time Level 1 market data for listed U.S. equities and options.

Quotes show the National Best Bid and Offer (NBBO), which is the best available bid and ask across exchanges at the top of the book.

Real-time Level 1 quotes are also available through the Clear Street API, including bid, ask, last trade, and session data. See the Clear Street API documentation at https://docs.clearstreet.com.

Level 2 market data

Clear Street does not currently offer Level 2, or depth-of-book, market data through Active or the API.

Options implied volatility

Implied volatility (IV) is not currently shown as a column in the options chain. Expanded options market data, including IV, is on our product roadmap.

This is separate from Omni’s options analytics. Omni can estimate implied volatility, calculate Greeks, and answer other options analytics questions on request, even though the options chain itself does not currently display IV as a column. For more information, see 📄 Omni AI — Overview and Key Features.

Pricing

Active includes real-time Level 1 market data at no separate charge.

Data connection issues

If the platform detects a data connection issue, it displays an indicator. If quotes appear stale or are not updating, check your internet connection. If the issue persists, contact Support.